[climacs-devel] number-of-lines-inregion

[Rudi Schlatte]

On 23. Jän 2005, at 19:25, Aleksandar Bakic wrote:

> Hi,
>
> Should the generic function number-of-lines-in-region be symmetrical 
> wrt. its
> mark parameters? Recently, delete-region has been changed so that the 
> order of
> mark offsets does not matter.

I'd vote "yes".

> In general, is there are rule by which one could
> decide whether an operator on two marks should care about the mark 
> offset order
> or not?

My gut feeling is that code such as:

(let ((mark1 (obtain-mark-1)) (mark2 (obtain-mark-2)))
   (operate-on-region mark1 mark2))

should not have to check and exchange marks manually.  So, I think most 
operations on regions should be order-agnostic.

Rudi
-------------- next part --------------
A non-text attachment was scrubbed...
Name: PGP.sig
Type: application/pgp-signature
Size: 186 bytes
Desc: This is a digitally signed message part
URL: <https://mailman.common-lisp.net/pipermail/climacs-devel/attachments/20050123/339dd70b/attachment.sig>